.left{
float: left;
margin-left: 50px;
}
.right{
  float: left;
  margin-left: 170px;
}
.box{
  overflow: hidden;
}
h2{
  margin-left: 50px;
}
.footer{
  margin-left: 50px;
}
span{
  display: inline-block;
  width:30px
}
button{
  margin: 30px 10px;
  padding: 10px 30px;

}
.z{
  background-color: greenyellow;
}
.y{
  background-color: pink;
}
[name='bz']{
  width: 700px;
  height: 100px;
  font-size: 20px;
}
[name='dl']{
  margin-top: 4px;
  margin-left: 15px;
width: 20px;
height: 20px;
}
ul{
  margin-left: -40px;
  list-style-type: none;
  display: inline-table;
}
ul li{
  display: inline-block;
  
}
.span1{
display: flex;
align-items: center;
justify-content: center;
}
i{
  font-style: normal;
  margin-right:20px ;
}